Hydraulic support side thrust spring convenient to disassemble and assemble for coal mine comprehensive mining

Abstract

The utility model relates to the technical field of hydraulic supports, in particular to a hydraulic support side thrust spring convenient to disassemble and assemble for coal mine comprehensive mining, which comprises a top beam, a front lug plate is arranged at the front end of the top beam, a rear lug plate is arranged at the rear end of the top beam, a fixed side protection plate is fixedly mounted on one side of the top beam, and a movable side protection plate is movably mounted on the other side of the top beam. And criss-cross reinforcing rib plates are arranged in the top beam, a plurality of side pushing jacks are hinged to the interior of the top beam, and the side pushing rods are hinged to output shafts of the side pushing jacks. According to the hydraulic support side thrust spring convenient to disassemble and assemble, the side thrust spring units arranged outside the inserting shaft side by side exert elastic force on the guide rod, the movable side protection plate can be driven to stretch outwards and be tightly attached to the adjacent support, roof gangues are prevented from falling down, and the supporting effect is achieved; and meanwhile, the side pushing spring unit is limited through the inserting shaft, and the stability of the side pushing spring unit during deformation is guaranteed.

Description

Technical Field

[0001] The utility model relates to the technical field of hydraulic supports, in particular to a side thrust spring of a hydraulic support for a coal mine which is convenient to assemble and disassemble. Background Art

[0002] The side thruster of a hydraulic support is a crucial component, providing rock retaining, sealing, and support functions. It guides the support during lifting, lowering, and relocation, preventing it from falling over and allowing for adjustments, significantly impacting its performance. In practice, side thrusters come in many different forms, depending on the application. Different designs influence their manufacturing difficulty and operational performance.

[0003] Upon investigation, the disclosure (announcement) number: CN212359831U discloses a hydraulic support side thrust device, which is disclosed to be arranged in the top beam spring sleeve of the hydraulic support, arranged in parallel with the side thrust jack of the hydraulic support, and used in conjunction with the side thrust jack. The side thrust device includes a spring push cylinder, a guide rod, and a telescopic mechanism arranged between the spring push cylinder and the guide rod. One end of the spring push cylinder is fixedly connected to the side guard plate of the hydraulic support, and the other end is arranged in the top beam spring sleeve and connected to the guide rod through the telescopic mechanism. Under the action of the telescopic mechanism, the spring push cylinder can move inside and outside the top beam spring sleeve along the guide rod. The hydraulic support side thrust device provided by the utility model can make the telescopic mechanism bear force evenly and regularly by arranging a guide rod inside the telescopic mechanism, thereby reducing irregular large deformation of the telescopic mechanism, which can not only improve the service life of the telescopic mechanism, but also improve the service life of the side thrust device.

[0004] The spring sleeve provided in the above technical solution is welded to the top beam, the guide rod and the side thrust spring are both inserted into the inside of the spring sleeve, and the side thrust spring is movably sleeved on the outside of the guide rod. After long-term use, the elasticity of the side thrust spring is easily weakened, and the side thrust spring needs to be regularly inspected and replaced. In the above technical solution, if the side thrust spring is to be disassembled and assembled, the movable side guard plate needs to be moved outward to the maximum stroke, and the guide rod and the side thrust spring need to be taken out axially from the spring sleeve. When the hydraulic support is in the working position, the internal operating space of the hydraulic support is limited, and is restricted by the adjacent hydraulic supports. The movable side guard plate and the guide rod have limited moving positions. Therefore, when the hydraulic support is in the working position, it is difficult to disassemble and assemble the side thrust spring. For this reason, we propose a coal mine comprehensive hydraulic support side thrust spring that is easy to disassemble and assemble to solve the above problems. Utility Model Content

[0005] The purpose of the utility model is to solve the shortcomings of the prior art and to propose a coal mine comprehensive support that is easy to disassemble and assemble and adopts a hydraulic support side thrust spring.

[0006] In order to achieve the above-mentioned purpose, the utility model adopts the following technical solutions: a coal mine comprehensive hydraulic support side thrust spring that is easy to disassemble and assemble, including a top beam, a front ear plate is provided at the front end of the top beam, and a rear ear plate is provided at the rear end, a fixed side guard plate is fixedly installed on one side of the top beam, and a movable side guard plate is movably installed on the other side, the interior of the top beam is provided with criss-cross reinforcing ribs, a plurality of side thrust jacks are hingedly connected to the interior of the top beam, and a side thrust rod is hinged on the output shaft of the side thrust jack, one end of the side thrust rod is threadedly connected to the movable side guard plate, a plurality of mounting boxes are fixedly installed inside the top beam, and a guide rod is plugged into one end of the mounting box, and one end of the guide rod is threadedly connected to the movable side guard plate, a mounting seat is clamped inside the mounting box, and a plug-in shaft is fixedly installed on one side of the mounting seat, and a side thrust spring structure is provided on the outside of the plug-in shaft.

[0007] Preferably, a threaded sleeve cooperating with the guide rod and the side push rod is provided on the side of the movable side guard plate close to the top beam. The side push rod and the guide rod are movably connected to the top beam to ensure that the guide rod and the side push rod can be firmly connected to the movable side guard plate, while ensuring the stability of the guide rod when moving.

[0008] Preferably, a through hole that cooperates with the guide rod is opened at one end of the installation box close to the movable side guard plate, the width inside the installation box is the same as the width of the mounting seat, and the height inside the installation box is the same as the height of the mounting seat, ensuring that the mounting seat remains stable after being clamped inside the installation box, thereby ensuring that the side thrust spring structure can stably apply elastic force to the guide rod.

[0009] Preferably, the guide rod is provided with a plug-in groove that cooperates with the plug-in shaft. After the guide rod is threadedly connected to the movable side guard plate, the plug-in groove on it faces the open end of the installation box. During installation, the plug-in shaft is clamped on the guide rod through the plug-in groove, which facilitates the assembly of the plug-in shaft and ensures that the plug-in shaft and the plug-in groove can slide relative to each other.

[0010] Preferably, the side thrust spring structure is composed of several parallel side thrust spring units, and the side thrust spring units are welded from two groups of symmetrically arranged arc leaf springs. By applying elastic force to the guide rod through several side thrust spring units arranged in parallel outside the plug-in shaft, the movable side guard plate can be driven to extend and retract outward.

[0011] Preferably, after the plug-in shaft is clamped in the plug-in slot, it is on the same central axis as the plug-in shaft. The cross-sectional shape of the plug-in shaft is a cross, which limits the cross-sectional shape of the plug-in shaft, ensures that the side thrust spring structure can slide stably outside the plug-in shaft, and prevents the side thrust spring structure from rotating axially along the plug-in shaft.

[0012] Preferably, the installation box is fixed on the top beam by screws, a sealing plate is fixed on the open end of the installation box by screws, and a limiting top claw is fixed on the side of the sealing plate close to the installation box. When the sealing plate is installed on the installation box, the limiting top claw on the inside can be pressed on one end of the plug-in shaft to achieve auxiliary restriction on the plug-in shaft.

[0013] The utility model has the following beneficial effects:

[0014] The coal mine comprehensive that is easy to disassemble and assemble designed by the utility model adopts the hydraulic support side thrust spring. A plurality of side thrust spring units arranged in parallel outside the plug-in shaft apply elastic force to the guide rod, which can drive the movable side guard plate to expand and contract outward, fit tightly with the adjacent supports, prevent the roof gangue from falling, and play a supporting role. At the same time, the side thrust spring unit is restricted by the plug-in shaft to ensure the stability of the side thrust spring unit during deformation, and ensure that the side thrust spring structure can stably apply elastic force to the movable side guard plate.

[0015] The coal mine comprehensive that is easy to disassemble and assemble designed by the utility model adopts the hydraulic support side thrust spring. The splicing shaft is connected to the guide rod through the splicing groove during installation, which is convenient for assembling the splicing shaft and ensures that the splicing shaft and the splicing groove can slide relative to each other. The length of the splicing shaft is the same as the length inside the installation box, and the side thrust spring structure is connected to the inside of the installation box through the mounting seat and the splicing shaft. After removing the sealing plate, the splicing shaft and the side thrust spring structure can be directly drawn out along the inside of the installation box, which is convenient for disassembling and assembling the side thrust spring structure. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a schematic diagram of the structure of the utility model after overall assembly;

[0017] Figure 2 This is a schematic diagram of the structure inside the top beam of the utility model;

[0018] Figure 3 This is a structural diagram of the connection between the installation box and the movable side guard plate of the utility model;

[0019] Figure 4 This is a schematic diagram of the structure inside the installation box of the utility model;

[0020] Figure 5 This is a structural diagram of the combination of the plug-in shaft and the side thrust spring unit of the utility model;

[0021] Figure 6 This is a structural diagram of the installation box and guide rod section of the utility model.

[0022] Legend:

[0023] 1. Top beam; 2. Front ear plate; 3. Rear ear plate; 4. Reinforcement rib plate; 5. Fixed side guard plate; 6. Movable side guard plate; 7. Side push jack; 8. Side push rod; 9. Installation box; 10. Sealing plate; 11. Guide rod; 12. Mounting seat; 13. Connecting shaft; 14. Connecting slot; 15. Side push spring structure; 151. Side push spring unit; 16. Limiting top claw. DETAILED DESCRIPTION

[0024] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all the embodiments.

[0025] Please refer to Figures 1 to 6 The utility model provides a technical solution: a coal mine comprehensive support adopts a hydraulic side push spring that is easy to disassemble and assemble, including a top beam 1, a front ear plate 2 is provided at the front end of the top beam 1, and a rear ear plate 3 is provided at the rear end. A fixed side guard plate 5 is fixedly installed on one side of the top beam 1, and a movable side guard plate 6 is movably installed on the other side. The interior of the top beam 1 is provided with a criss-cross reinforcing rib plate 4, a plurality of side push jacks 7 are hingedly connected to the interior of the top beam 1, and a side push rod 8 is hinged on the output shaft of the side push jack 7, one end of the side push rod 8 is threadedly connected to the movable side guard plate 6, and the side push jack 7 drives the side push rod 8 to move, which can drive the movable side guard plate 6 to move closer to the top beam 1. A plurality of installation boxes 9 are fixedly installed inside the top beam 1, and a guide rod 11 is inserted at one end of the installation box 9, and one end of the guide rod 11 is threadedly connected to the movable side guard plate 6 The connection is that the interior of the installation box 9 is clamped with a mounting seat 12, and the plug-in shaft 13 is clamped on the guide rod 11 through the plug-in groove 14 during installation, which is convenient for assembling the plug-in shaft 13, while ensuring that the plug-in shaft 13 and the plug-in groove 14 can slide relative to each other, and the plug-in shaft 13 is fixedly installed on one side of the installation seat 12, and the side thrust spring unit 151 is restricted by the plug-in shaft 13 to ensure the stability of the side thrust spring unit 151 during deformation, and to ensure that the side thrust spring structure 15 can stably apply elastic force to the movable side guard plate 6, and a side thrust spring structure 15 is provided on the outside of the plug-in shaft 13, and an elastic force is applied to the guide rod 11 by several side thrust spring units 151 arranged in parallel on the outside of the plug-in shaft 13, which can drive the movable side guard plate 6 to extend and retract to the outside, and fit tightly with the adjacent bracket to prevent the top plate gangue from falling, thereby playing a supporting role.

[0026] As a further implementation plan of the above technical solution: a threaded sleeve that cooperates with the guide rod 11 and the side push rod 8 is provided on the side of the movable side guard plate 6 close to the top beam 1. The side push rod 8 and the guide rod 11 are movably connected to the top beam 1 to ensure that the guide rod 11 and the side push rod 8 can be firmly connected to the movable side guard plate 6, while ensuring the stability of the guide rod 11 when moving.

[0027] As a further implementation plan of the above technical solution: a through hole is opened at one end of the installation box 9 close to the movable side guard plate 6, and the guide rod 11 can pass through the hole to penetrate into the interior of the installation box 9 and cooperate with the side thrust spring structure 15. The width of the interior of the installation box 9 is the same as the width of the mounting seat 12, and the height of the interior of the installation box 9 is the same as the height of the mounting seat 12, ensuring that the mounting seat 12 remains stable after being clamped inside the installation box 9, thereby ensuring that the side thrust spring structure 15 can stably apply elastic force to the guide rod 11.

[0028] As a further implementation plan of the above technical solution: a plug-in groove 14 is provided on the guide rod 11 to cooperate with the plug-in shaft 13. The plug-in shaft 13 is clamped on the guide rod 11 through the plug-in groove 14 during installation, which is convenient for assembling the plug-in shaft 13 and ensures that the plug-in shaft 13 and the plug-in groove 14 can slide relative to each other. After the guide rod 11 is threadedly connected to the movable side guard plate 6, the plug-in groove 14 on it faces the open end of the installation box 9. The length of the plug-in shaft 13 is the same as the length inside the installation box 9, and the side thrust spring structure 15 is clamped to the inside of the installation box 9 through the mounting seat 12 and the plug-in shaft 13. After removing the sealing plate 10, the plug-in shaft 13 and the side thrust spring structure 15 can be directly pulled out along the inside of the installation box 9.

[0029] As a further implementation plan of the above technical solution: the side thrust spring structure 15 is composed of a number of parallel side thrust spring units 151, and the side thrust spring unit 151 is welded by two groups of symmetrically arranged arc leaf springs. By applying elastic force to the guide rod 11 through a number of side thrust spring units 151 arranged in parallel outside the plug-in shaft 13, the movable side guard plate 6 can be driven to extend and retract outward, fit tightly with the adjacent bracket, prevent the top plate gangue from falling, and play a supporting role.

[0030] As a further implementation plan of the above technical solution: after the plug-in shaft 13 is clamped in the plug-in groove 14, it is on the same central axis as the plug-in shaft 13, and the cross-sectional shape of the plug-in shaft 13 is a cross. The cross-sectional shape of the plug-in shaft 13 is restricted to ensure that the side thrust spring structure 15 can slide stably outside the plug-in shaft 13, and at the same time prevent the side thrust spring structure 15 from rotating axially along the plug-in shaft 13, thereby ensuring the stability of the side thrust spring structure 15 during operation.

[0031] As a further implementation plan of the above technical solution: the installation box 9 is fixed on the top beam 1 by screws, and a sealing plate 10 is fixed on the open end of the installation box 9 by screws. By setting the sealing plate 10, the position of the mounting seat 12 can be restricted, thereby ensuring the stability of the mounting seat 12, the plug-in shaft 13 and the side thrust spring structure 15 after installation inside the installation box 9, and a limiting top claw 16 is fixedly installed on the side of the sealing plate 10 close to the installation box 9. When the sealing plate 10 is installed on the installation box 9, the inner limiting top claw 16 can be pressed on one end of the plug-in shaft 13 to achieve auxiliary restriction on the plug-in shaft 13.

[0032] Working principle:

[0033] When using the utility model, the side push rod 8 is movably installed on the top beam 1, and one end of the side push rod 8 is threadedly connected to the movable side guard plate 6, and the other end is hinged to the output shaft of the side push jack 7, and the other end of the side push jack 7 is hinged to the top beam 1 to complete the installation of the side push jack 7 and the side push rod 8; the installation box 9 is installed on the top beam 1 by screws, and the guide rod 11 is passed through the top beam 1 and the installation box 9, and one end of the guide rod 11 is threadedly connected to the movable side guard plate 6. After the guide rod 11 is installed, The plug-in slot 14 on the guide rod 11 is facing the open end of the installation box 9, and the side push spring units 151 are mounted on the plug-in shaft 13. Pressure is applied to the side push spring units 151 in advance to shrink the side push spring units 151. The assembled mounting seat 12, the plug-in shaft 13, and the side push spring structure 15 are clamped into the installation box 9, and the plug-in shaft 13 is clamped into the plug-in slot 14 on the guide rod 11. The sealing plate 10 is installed on the installation box 9 by screws. After the sealing plate 10 is installed, The end of the inner limiting top claw 16 contacts the end of the plug-in shaft 13 away from the mounting seat 12, and the limiting top claw 16 assists in limiting the plug-in shaft 13, thereby completing the installation of the entire installation box 9; when the side push jack 7 controls the side push rod 8 to be in a retracted state, the side push rod 8 pulls the movable side guard plate 6 to reset, so that the movable side guard plate 6 is close to the top beam 1, and when the side push jack 7 is in a pressure relief state, the guide rod 11 is exerted with elastic force by the side push spring units 151 in the side push spring structure 15. The guide rod 11 drives the movable side guard plate 6 to extend outward, fitting tightly with the adjacent bracket to prevent the top plate gangue from falling and play a supporting role; when the side thrust spring structure 15 needs to be repaired or replaced, the sealing plate 10 is removed. Since the plug-in shaft 13 is clamped in the plug-in groove 14, the guide rod 11 will not interfere with the disassembly and assembly of the plug-in shaft 13. The mounting seat 12, the plug-in shaft 13 and the side thrust spring structure 15 can be directly pulled out from the inside of the mounting box 9, which is convenient for disassembly and assembly of the side thrust spring structure 15.

[0034] In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc., indicating directions or positional relationships, are based on the directions or positional relationships shown in the accompanying drawings and are only for the convenience of describing the present invention and simplifying the description. They do not indicate or imply that the devices or components referred to must have a specific direction, be constructed and operate in a specific direction. Therefore, they should not be understood as limiting the present invention. The terms "first", "second", and "third" are used for descriptive purposes only and should not be understood as indicating or implying relative importance. In addition, unless otherwise expressly specified and limited, the terms "installed", "connected", and "connected" should be understood in a broad sense. For example, they can be fixed connections, detachable connections, or integral connections; they can be mechanical connections or electrical connections; they can be direct connections, indirect connections through an intermediate medium, or internal connections between two components. For those skilled in the art, the specific meanings of the above terms in the present invention can be understood according to specific circumstances. Furthermore, the terms "comprises," "comprising," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed or inherent to such process, method, article, or apparatus.

[0035] Although the embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and variations may be made to these embodiments without departing from the principles and spirit of the present invention, and the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A coal mine comprehensive hydraulic support side thrust spring that is easy to disassemble and assemble, comprising a top beam (1), a front ear plate (2) provided at the front end of the top beam (1), a rear ear plate (3) provided at the rear end, a fixed side guard plate (5) fixedly installed on one side of the top beam (1), and a movable side guard plate (6) movably installed on the other side, and a crisscross reinforcing rib plate (4) provided inside the top beam (1), characterized in that: The top beam (1) is hinged with a plurality of side push jacks (7), and a side push rod (8) is hinged on the output shaft of the side push jack (7), one end of the side push rod (8) is threadedly connected to the movable side guard plate (6), and the top beam (1) is fixedly installed with a plurality of installation boxes (9), and one end of the installation box (9) is plugged with a guide rod (11), one end of the guide rod (11) is threadedly connected to the movable side guard plate (6), the interior of the installation box (9) is clamped with a mounting seat (12), and a plug-in shaft (13) is fixedly installed on one side of the mounting seat (12), and a side push spring structure (15) is provided on the outside of the plug-in shaft (13).

2. The coal mine comprehensive hydraulic support with side thrust springs that is easy to disassemble and assemble according to claim 1 is characterized in that: A threaded sleeve cooperating with a guide rod (11) and a side push rod (8) is provided on one side of the movable side guard plate (6) close to the top beam (1), and the side push rod (8) and the guide rod (11) are both movably connected to the top beam (1).

3. The coal mine comprehensive hydraulic support with side thrust springs that is easy to disassemble and assemble according to claim 1 is characterized in that: The installation box (9) is provided with a through hole matched with the guide rod (11) at one end close to the movable side guard plate (6). The width of the interior of the installation box (9) is the same as the width of the installation seat (12), and the height of the interior of the installation box (9) is the same as the height of the installation seat (12).

4. The coal mine comprehensive support with hydraulic support and side thrust spring that is easy to disassemble and assemble according to claim 1 is characterized in that: The guide rod (11) is provided with a plug slot (14) that matches the plug shaft (13). After the guide rod (11) is threadedly connected to the movable side guard plate (6), the plug slot (14) faces the opening end of the installation box (9).

5. The coal mine comprehensive hydraulic support with side thrust springs that is easy to disassemble and assemble according to claim 1 is characterized in that: The side thrust spring structure (15) is composed of a plurality of side thrust spring units (151) arranged in parallel, and the side thrust spring units (151) are formed by welding two groups of symmetrically arranged arc-shaped leaf springs.

6. The coal mine comprehensive hydraulic support with side thrust springs that is easy to disassemble and assemble according to claim 4 is characterized in that: After the plug-in shaft (13) is clamped in the plug-in groove (14), it is located on the same central axis as the plug-in shaft (13), and the cross-sectional shape of the plug-in shaft (13) is a cross.

7. The coal mine comprehensive hydraulic support with side thrust springs that is easy to disassemble and assemble according to claim 1 is characterized in that: The installation box (9) is fixedly mounted on the top beam (1) by screws, a sealing plate (10) is fixedly mounted on the open end of the installation box (9) by screws, and a limiting top claw (16) is fixedly mounted on the side of the sealing plate (10) close to the installation box (9).

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